arable land classification and appraisal 农用地定级与估价
arable land classification information system 农用定级信息系统
Base on analyzing the region the study inquired into the theories and methods of the arable land gradation and classification which is outskirts town's arable land.
本研究在分析区域特点的基础上，探讨了城郊型县域农用地分等定级的理论和方法。
Arable land gradation and classification is one of important parts of present land resources investigation of wide scope and fundamental tasks of the land management department.
农用土地分等定级是当前国土资源大调查重要组成部分，是土地管理部门一项重要的基础工作。
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